WO2010072444A1 - Machine-outil, notamment machine-outil portative - Google Patents

Machine-outil, notamment machine-outil portative Download PDF

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Publication number
WO2010072444A1
WO2010072444A1 PCT/EP2009/063903 EP2009063903W WO2010072444A1 WO 2010072444 A1 WO2010072444 A1 WO 2010072444A1 EP 2009063903 W EP2009063903 W EP 2009063903W WO 2010072444 A1 WO2010072444 A1 WO 2010072444A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine tool
tool
sensor
saw blade
jigsaw
Prior art date
Application number
PCT/EP2009/063903
Other languages
German (de)
English (en)
Inventor
Thilo Koeder
Joachim Platzer
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP09740885A priority Critical patent/EP2379266A1/fr
Priority to CN2009801516876A priority patent/CN102256733A/zh
Priority to US13/141,440 priority patent/US20110314683A1/en
Publication of WO2010072444A1 publication Critical patent/WO2010072444A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
    • B23D59/002—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade for the position of the saw blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/16—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows

Definitions

  • Machine tool in particular hand-held machine tool
  • the invention relates to a machine tool, in particular a hand-held
  • Machine tool according to the preamble of claim 1, and a method for operating such a machine tool.
  • Machine tools of the aforementioned type are known.
  • DE 10 2006 052 808 A1 shows such a machine tool in its preferred embodiment as a jigsaw with several extension levels.
  • the jigsaw is provided with a driven only liftable, non-rotatable saw blade as a tool.
  • a further expansion stage for the so-called pendulum lifting operation, an additional pivotability is provided around a pivot axis transverse to the lifting axis and to the saw blade plane.
  • Another, optionally further expansion stage provides for a rotatability of the saw blade about an axis of rotation parallel to its stroke axis. This makes it possible to change the direction of rotation by turning the saw blade.
  • This is used for the semi-autonomous operation of jigsaws, for which the jigsaw is provided with a detection sensor, in particular a camera, for observing the working line and derived from the observation results thus obtained, the saw blade is aligned in its rotational position on the line to be tracked.
  • the sensor system formed by the camera is followed by a computer-aided evaluation unit, which controls the actuator for adjusting the rotational position of the saw blade via control electronics.
  • the invention is based on the object for a machine tool of the type mentioned to expand the range of machine-side intervention options in the operation to the user in the operation and use of
  • an additional detection device for machine-side machining and / or operating parameters is provided by sensors that detect movements and positions of the tool. This results in a variety of intervention and / or parking options.
  • rotational movements for the saw blade in particular when the pendulum stroke is engaged under the engagement of the saw blade in the workpiece may be critical.
  • the inventive detection of the upper reversal position makes it possible to make saw blade corrections only when the pendulum stroke, when the saw blade is not in sawing engagement with the workpiece during its downward movement. This ensures that the actuating forces on the saw blade do not become too large due to the large feed and possibly also impair the accuracy of the tracking.
  • the corresponding detection of the reversal positions can also be used within the scope of the invention for control purposes, for example for measuring and adjusting the number of strokes.
  • a sensor system for the respective detection of the reversal position can be formed by a Hall sensor.
  • Fig. 1 is a schematic representation of a machine tool according to the invention in the form of a hand-held, electrically driven jigsaw, the front side has a sensor for observing the working range of its saw blade on the workpiece, and
  • FIG. 2 and 3 are schematic illustrations of a jigsaw of FIG. 1, wherein in Fig. 2, the jigsaw in lifted in the upper reversing position hubbeweglichem saw blade and thus largely free field of view of the sensor on the work area of the saw blade, while in Fig. 3 ent - Speaking situation is shown in the lower reversing position extended saw blade and thus by the saw blade and its inclusion partially restricted field of view of the sensor.
  • FIG. 1 shows a jigsaw 2 as an example of a hand-held machine tool 1 according to the invention. Its housing 3 is displaceably supported on a workpiece 5 via a base plate 4. In their front with respect to the working direction 6 area the jigsaw 2 is provided with a saw blade 8 as a working tool 7. The saw blade 8 is held in a tool holder 9, which lies in the transition from the saw blade 8 to a lifting rod 10.
  • the lifting rod 10 is indicated only schematically and can be moved by means of a drive (not shown) with the saw blade 8 in the direction of the arrow 1 1. With the saw blade 8, the lifting rod 10 is further rotatable about an axis of rotation 12 extending in the direction of its lifting axis via an only schematically shown machine-side actuator. Also indicated in FIG. 1 is a drive device 13 located on the rear side of the saw blade 8, via which the saw blade 8 can be pivoted about a pivot axis, not shown, transverse to the axis of rotation and also transversely to the
  • the jigsaw 2 is to be operated in various operating modes due to the pre-formed structure. One of them is the regular employment with lasting in
  • Working direction 6 aligned saw blade.
  • Another mode of operation is the so-called said pendulum lifting, in which the saw blade 8 superimposed on the lifting movement according to arrow 1 1 is moved by a not shown, transverse to the axis of rotation 12 extending pivot axis by means of the drive device 14 oscillating.
  • a third mode of operation use is made of the rotatability of the saw blade 8 about the axis of rotation 12, and the jigsaw 2 can be used as a so-called “scrolling jigsaw” and thus operated as a semi-autonomous jigsaw 2.
  • the individual operating modes are to be set via a switching device 15. Furthermore, a switching arrangement 16 for switching on and off the jigsaw 2 is indicated.
  • the semi-autonomous operation of the jigsaw 2 is not possible without an observation device 17 for a respectively to be pursued working line and downstream of the observation device 17 requires corresponding auxiliary devices 18, in consideration of the observation device 17 on the detected equipment side conditions, so in particular to be detected Working line to allow the semi-autonomous operation of jigsaw 2.
  • the observation device 17 comprises a sensor 19, in particular formed by a camera, which acts primarily on one penetrated by the saw blade 7
  • Detection surface is aligned, which lies in the region of a provided in the base plate 4 adjacent to the saw blade 8 cutout 20, which is only partially visible.
  • a lighting device 21 is expediently aligned, which preferably lies in the vicinity of the sensor 19 and how this underside at one on the front side
  • auxiliary devices 18 shown symbolically on the front side 22 have a computing unit 27 and an electronic control unit 28, via which the results of the observation device 17 are used primarily in control commands and, as appropriate, if also notes are implemented, which are displayed for the user in the display 24.
  • the corresponding control of the sensor 19 in the form of the camera via a sensor 30, which is exemplified in association with a housing-side storage 31. Shown is the sensor 30 for simplicity as a sensor ring, via which the upper reversing position of the lifting rod 10 is detected.
  • a corresponding control signal is used via the control unit 26 to trigger the recording of a camera image in or in the region of the reversal position with a free view of the sensor 19 on the detection surface.
  • a sensor 30 for example, a Hall sensor can be used.
  • an electromotive drive unit 32 is provided, which is indicated only in the diagram in Fig. 1. Via the drive unit, the lifting rod 10 can be driven, for example by means of an eccentric drive in a known manner, it is for the lifting rod
  • the detection of a respective reversal position of the linear actuator can be used within the scope of the invention for the detection and / or influencing further operating parameters, for example, to activate special device functions only during operation - only then turn around - or to provide the user with information about current processing parameters, such as the number of strokes.
  • This also offers the possibility of replacing signals with corresponding statements, which have hitherto been obtained by other means, by the output signal obtained in accordance with the invention as a function of the stroke position. If the number of strokes is detected on the way according to the invention, then a respectively changed number of strokes can be set, also taking into account other values, for example with knowledge of material parameters of the respective workpiece 5 to be machined.

Abstract

L'invention concerne une machine-outil (1), notamment une scie sauteuse (2), dotée d'un dispositif de détection qui capte la position de l'outil, notamment la position de course de la lame de scie (8) dans au moins une des positions d'inversion.
PCT/EP2009/063903 2008-12-22 2009-10-22 Machine-outil, notamment machine-outil portative WO2010072444A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09740885A EP2379266A1 (fr) 2008-12-22 2009-10-22 Machine-outil, notamment machine-outil portative
CN2009801516876A CN102256733A (zh) 2008-12-22 2009-10-22 工具机，尤其是手持式工具机
US13/141,440 US20110314683A1 (en) 2008-12-22 2009-10-22 Power Tool, Particularly a Hand-Held Power Tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008055066.3 2008-12-22
DE102008055066A DE102008055066A1 (de) 2008-12-22 2008-12-22 Werkzeugmaschine, insbesondere handgehaltene Werkzeugmaschine

Publications (1)

Publication Number Publication Date
WO2010072444A1 true WO2010072444A1 (fr) 2010-07-01

Family

ID=41508025

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/063903 WO2010072444A1 (fr) 2008-12-22 2009-10-22 Machine-outil, notamment machine-outil portative

Country Status (5)

Country Link
US (1) US20110314683A1 (fr)
EP (1) EP2379266A1 (fr)
CN (1) CN102256733A (fr)
DE (1) DE102008055066A1 (fr)
WO (1) WO2010072444A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012223692A1 (de) * 2012-12-19 2014-06-26 Robert Bosch Gmbh Werkzeugmaschine mit mindestens einer zum Ausführen einer Hubbewegung antreibbaren Arbeitsklinge
DE102014201435A1 (de) * 2014-01-27 2015-07-30 Robert Bosch Gmbh Handwerkzeugmaschine
CN112809087B (zh) * 2019-11-15 2022-07-12 苏州宝时得电动工具有限公司 往复锯

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628459A (en) * 1983-03-08 1986-12-09 Hitachi Koki Company, Limited Computerized circuit arrangement for jig saw
US20030163924A1 (en) * 2002-02-04 2003-09-04 Hempe David A. Electrical devices including a switched reluctance motor
US20060159533A1 (en) * 2004-12-17 2006-07-20 Zeiler Jeffrey M Smart accessories for power tools
DE102006052808A1 (de) * 2006-11-09 2008-05-15 Robert Bosch Gmbh Handhubsägemaschine
EP2002939A2 (fr) * 2006-04-05 2008-12-17 Max Co., Ltd. Outil electrique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628459A (en) * 1983-03-08 1986-12-09 Hitachi Koki Company, Limited Computerized circuit arrangement for jig saw
US20030163924A1 (en) * 2002-02-04 2003-09-04 Hempe David A. Electrical devices including a switched reluctance motor
US20060159533A1 (en) * 2004-12-17 2006-07-20 Zeiler Jeffrey M Smart accessories for power tools
EP2002939A2 (fr) * 2006-04-05 2008-12-17 Max Co., Ltd. Outil electrique
DE102006052808A1 (de) * 2006-11-09 2008-05-15 Robert Bosch Gmbh Handhubsägemaschine

Also Published As

Publication number Publication date
DE102008055066A1 (de) 2010-07-01
EP2379266A1 (fr) 2011-10-26
US20110314683A1 (en) 2011-12-29
CN102256733A (zh) 2011-11-23

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